Mechanical Operations Maximum size reduction in a ball mill is done by the, __________ action. Attrition Compression Cutting Impact Attrition Compression Cutting Impact ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ball mill is used for Attrition Crushing Fine grinding Coarse grinding Attrition Crushing Fine grinding Coarse grinding ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultrafine grinders operate principally by Slow compression Cutting action Attrition Impact Slow compression Cutting action Attrition Impact ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy required per unit mass to grind limestone particles of very large size to 100 μm is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 μrn is 6.35 kWh/ton 9.0 kWh/ton 25.4 kWh/ton 18 kWh/ton 6.35 kWh/ton 9.0 kWh/ton 25.4 kWh/ton 18 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is ½w² . δρL (2R + δ) ½w² . R . ρL(R + 2δ) ½w² . R² . ρL ½w² . δ² . ρL ½w² . δρL (2R + δ) ½w² . R . ρL(R + 2δ) ½w² . R² . ρL ½w² . δ² . ρL ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is used for primary crushing of very hard lumpy materials? Tube mill Toothed roll crusher Gyratory crusher Ball mill Tube mill Toothed roll crusher Gyratory crusher Ball mill ANSWER DOWNLOAD EXAMIANS APP
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